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Definitions

energy

[en-er-jee] / ˈɛn ər dʒi /
NOUN
person's spirit and vigor
Synonyms
STRONGEST
efficiency intensity power spirit stamina strength toughness vitality
STRONG
activity animation application ardor birr dash drive effectiveness efficacy endurance enterprise exertion fire force forcefulness fortitude get-up-and-go go hardihood initiative juice life liveliness might moxie muscle pep pizazz pluck potency puissance punch spontaneity steam tuck vehemence verve vim virility vivacity zeal zest zing zip
WEAK
operativeness élan
Antonyms
STRONGEST
apathy impotence inability incompetence inefficiency lack laziness lethargy weakness
STRONG
cowardice dispiritedness dullness idleness inactivity indifference indolence ineffectiveness lifelessness powerlessness uselessness
WEAK
tiredness
NOUN
generated power
Synonyms
STRONGEST
dynamism electricity heat potential service strength
STRONG
application burn conductivity current force friction gravity horsepower juice kilowatts magnetism pressure radioactivity rays reaction response steam voltage wattage
Antonyms
STRONGEST
lack
STRONG
peace question
WEAK
idleness inactivity laziness lethargy tiredness

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The analyst added that he was “confused” because the demand for energy products like Tesla’s Megapacks appears to still be strong.

From MarketWatch • Apr. 6, 2026

The petrochemical industry is a pillar of the Iranian economy, generating about 25% of total nonoil export revenue, said Neil Quilliam, an energy expert at Chatham House, a think tank.

From The Wall Street Journal • Apr. 6, 2026

Also, be sure to check out our list of L.A. playgrounds that are close to coffee shops where you can get a jolt of energy if needed.

From Los Angeles Times • Apr. 6, 2026

Shane Dorsett, chief operating officer at The Felix Project, said the food redistribution charity was feeling the effects of higher energy and fuel prices because of the conflict in the Middle East.

From BBC • Apr. 6, 2026

Her father got energy from engaging with other people.

From "Two Degrees" by Alan Gratz

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.